Vintage Postcard Aztec Art iPhone 4 Case - Fits iPhone 4 and iPhone 4S FREE SCREEN PROTECTOR INCLUDED - 30 Day Satisfaction Guarantee. Cases are produced in and ship from the United States with USPS Tracking provided. Our universal custom iPhone 4/4S cases offer the perfect fit for your phone no matter who your carrier is. This newer iPhone 4 case is made of hard silicon bumpers that offer the best protection possible for your gadget. The printing methodology used is sublimation, which offers a bright and durable print on the iPhone case for long time to come.